Research on the Safety Impact of Excavation of Urban Rail Station Sections on Adjacent High-Speed Railway Station Buildings
At present,urban rail transit projects in megacities are emerging one after another,and the excavation construction of urban rail station sections with existing buildings around them has huge safety hazards.Based on the Ziyang North Station,the seventh station of the rail transit Ziyang Line Project,the control technology of the excavation of the urban rail station section(open excavation and subsurface excavation)to the adjacent high-speed railway station building is proposed.The three-dimensional model of the urban rail station section adjacent to the existing building is established.The safety of the deformation strength of the existing national railway station buildings and the underground parking lot is proved.The displacement and stress variation law of the existing building is revealed,and the effectiveness of the excavation of the urban rail station section to the safety control technology of the adjacent high-speed railway station building is proved.The research results can provide technical reference for the influence of urban rail station section excavation on adjacent buildings,and have practical guidance for future foundation pit excavation.
urban rail station sectionexisting building clusterssecurity controldeformation analysisnumerical simulation
NETL
NSTL
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